| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] this is | 1882 |
|
| 2 | [vb past] this [be] | 457 |
|
| 3 | [vb past] this be | 456 |
|
| 4 | [vb past] [adj] is | 162 |
|
| 5 | [vb past] [det] is | 121 |
|
| 6 | [vb past] this [is] | 83 |
|
| 7 | [vb past] this is | 82 |
|
